Garden sprinkler hose

ABSTRACT

A garden sprinkler hose generally triangular in transverse cross section, comprising two firm relatively thick walls joined at one of their longitudinal edges, and a third relatively thin and flexible wall joined at its longitudinal edges to the two thicker walls, the third wall being provided with sprinkler holes. The hose is designed to rest on one of its thick walls. Water pressure in the hose causes the thin flexible wall to curve outwardly, the degree of curvature depending on the pressure in the hose, thereby to control and vary the area which receives water through the aperture in the flexible wall.

United States Patent 1191 Bohlman Apr. 17, 1973 GARDEN SPRINKLER HOSE[76] Inventor: Heine Bohlman, 35 Xavier St., Primary Examiner-L103 dKing Denver, Cola 80129 Attorney-Bertha L. MzicGregor [22] Filed: Sept.13, 1971 57 ABSTRACT [21] Appl' 179305 A garden sprinkler hose generallytriangular in transverse cross section, comprising two firm relatively52 Us. (:1 ..239/534, 239/557 thiek wells joined at one of theirlongitudinal g [51] int. C1. ..B05b 1/30 and a hir i ly hin and fl xiblewall joined at its [58] Field of Search ..239/l45, 450, 534, longi inalges to h two hi Walls, the third 239/547, 548, 566, 557 wall beingprovided with sprinkler holes. The hose is designed to rest on one ofits thick walls. Water pres- [56] References Cited sure in the hosecauses the thin flexible wall to curve outwardly, the degree ofcurvature depending on the UNITED STATES PATENTS pressure in the hose,thereby to control and vary the 2,771,320 11/1956 Korwin ..239/534 Xarea which receives water through the aperture in the 1,641,778 9/1927Overton ..239/534 flexible wall, 2,730,404 1/1956 Meisiner et al....239/45O X 3,567,134 3/1971 Smith ..239/547 1 Claim, 3 Drawing FiguresPATENTEDAPR 1 1 I 1 3'. 727, 845

INVENTOR. HEINO BOHLMAN BY mi.

ATTORN E Y GARDEN SPRINKLER HOSE This invention relates to a gardensprinkler hose designed to deliver water to restricted areas and inselected directions. The extent of the area to which water is deliveredby the hose is controlled by the water pressure.

The objects of the invention are achieved by providing a hoseconstruction which is generally triangular in transverse cross section,two of its three wall sections being relatively firm and thicker thanits third wall section which is relatively thin and flexible. Only theflexible wall is provided with apertures for passage of water out of thehose. This arrangement permits either of the imperforate, firmrelatively thick walls to serve as a base on which the hose may rest,while the flexible wall responds to water pressure in the hose bycurving outwardly, causing the water streams to flow in predetermineddirections and to cover lawn and garden areas to a selected extent.

The hose may be placed adjacent a wall or sidewalk edge, with itsflexible wall facing away from the wall or walk edge, to deliver waterwithout waste to cover an area of selected width.

In the drawings:

FIG. 1 is an isometric view of a portion of a garden sprinkler hoseembodying the invention.

FIG. 2 is a transverse sectional view showing the hose as it appearswhen delivering water streams in response to limited water pressure inthe hose.

FIG. 3 is a view similar to FIG. 2 showing the hose as it appears whendelivering water streams in response to increased water pressure in thehose as compared to FIG. 2.

In the embodiment of the invention shown in the drawings, the hosecomprises two imperforate, relatively firm and thick wall sections 11and 12, either of which may provide a base on which the hose rests inuse. The walls 11 and 12 are joined together at one of theirlongitudinal edges to extend at divergent angles. The other longitudinaledges of the walls 11 and 12 are joined to a relatively thin andflexible wall 13 provided with apertures l4 for passage of water out ofthe hose.

The junctions between each of the walls 1 l and 12 and the flexible wall13 are curved continuations of the flexible wall which merge into thethicker walls 1 l and 12 as indicated at 15.

The flexible wall 13 responds to the water pressure in the hose bycurving outwardly to varying degrees, as illustrated in FIG. 2 where thewater pressure is less than maximum, and in FIG. 3 where the waterpressure has been increased as compared to FIG. 2. Thus the width of thearea covered by the water is less in FIG. 2 than in FIG. 3, due to thedegree of curvature of the wall 13.

By placing the hose on either of its walls, 11 or 12, adjacent a wall orwalk or patio edge, the water is directed away from the not-to-bewatered area, and the extent of the area to be watered can be controlledas to direction and width.

The hose may be made of rubber or any other suitable material whichpermits automatic curvature of the apertured wall in response to waterpressure. The walls preferably are molded or formed integrally.

I claim:

l. A garden sprinkler hose which is triangular in transverse crosssection com rising I a. two relatively firm thlc lmperforate walls oinedtogether at one of their longitudinal edges and extending in divergentdirections, and

b. a relatively thin and flexible wall provided with apertures andjoined at its longitudinal edges to said relatively thick walls, saidflexible wall curving outwardly in response to water pressure in thehose and delivering water streams through said apertures to cover areasof selected width controlled by said water pressure, said flexible wallbeing joined to the relatively firm and thicker walls by curved jointsthinner than the firm walls and integral with said other walls, eitherof the two relatively firm and thick walls constituting the base onwhich the hose rests in use and both being imperforate, whereby waterstreams flow only from the flexible perforated wall to only a selectedone of two sides of the hose, the degree of flexing of the flexible walland width of the area sprinkled being controlled by water pressure inthe hose.

1. A garden sprinkler hose which is triangular in transverse crosssection comprising a. two relatively firm thick imperforate walls joinedtogether at one of their longitudinal edges and extending in divergentdirections, and b. a relatively thin and flexible wall provided withapertures and joined at its longitudinal edges to said relatively thickwalls, said flexible wall curving outwardly in response to waterpressure in the hose and delivering water streams through said aperturesto cover areas of selected width controlled by said water pressure, saidflexible wall being joined to the relatively firm and thicker walls bycurved joints thinner than the firm walls and integral with said otherwalls, either of the two relatively firm and thick walls constitutingthe base on which the hose rests in use and both being imperforate,whereby water streams flow only from the flexible perforated wall toonly a selected one of two sides of the hose, the degree of flexing ofthe flexible wall and width of the area sprinkled being controlled bywater pressure in the hose.